AS ROOT:

1. Copy your font files (.ttf and/or .otf) to their respective directories:

   /usr/share/fonts/TTF
   /usr/share/fonts/OTF

2. Run the following commands, with the directory where you copied the fonts as argument:

   mkfontdir /usr/share/fonts/{TTF,OTF}
   mkfontscale /usr/share/fonts/{TTF,OTF}
   fc-cache -f -v

3. Restart X.

• Originally written by arfon